I need an amplifier to drive an ultrasound emitter (inductive load, 120uH, 0.3 ohm). Single supply circuit would be preferable. Bandwidth - from 40 to 200kHz, output power 6-10W at 4 ohm load. The input signal is sine wave.
I tried TDA2050, but at ~15kHz it's output current starts to drop and at 100kHz it's only 80 mA. Also I found this circuit, but when I try to simulate it in Multisim, I get nothing at the output with ±12V supply.